Some plants of the genus Impatiens; specifically, the touch-me-not balsam or yellow balsam (Impatiens noli-tangere).
The squirting cucumber (Ecballium elaterium).
Any of various plants with fruits or seed capsules that, when ripe, burst open and discharge their seeds when touched, or with leaves that fold and droop when touched.
Someone (such as a disagreeable person) or something (such as a painful experience or taboo topic) to be avoided or not interfered with.
A warning to avoid or not to interfere.
A picture depicting Jesus appearing to Mary Magdalene shortly after his resurrection from the dead (see the etymology).
A plant that moves in response to touch and other physical stimuli; especially Mimosa pudica, an annual plant native to Central and South America.